Left: Distillation rig used in the measurement of microbial sulfate reduction rates associated with a method based on the incubation of sediment samples with radioactively labeled sulfate. Photographer: M. Marvin-DiPasquale. Date: 3/5/2001.
Images
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Laboratory approaches for quantifying microbial process rates and analyte concentrations
Left: Distillation rig used in the measurement of microbial sulfate reduction rates associated with a method based on the incubation of sediment samples with radioactively labeled sulfate. Photographer: M. Marvin-DiPasquale. Date: 3/5/2001.
three neotropical birds
Three neotropical birds (Left to right: Magnolia warbler, Wilson's warbler, Canada warbler - all males) that were cought in mist net for banding
Three neotropical birds (Left to right: Magnolia warbler, Wilson's warbler, Canada warbler - all males) that were cought in mist net for banding
Corals and mangroves share clear waters
Sediment can smother corals, but Hurricane Hole has no sediment-bearing freshwater streams. Its clear waters are habitat for an entire community of marine life, including Montastrea corals and squirrelfish. Photo: Caroline Rogers, USGS, 2009
Sediment can smother corals, but Hurricane Hole has no sediment-bearing freshwater streams. Its clear waters are habitat for an entire community of marine life, including Montastrea corals and squirrelfish. Photo: Caroline Rogers, USGS, 2009
The last sheath-tailed bat photo
This photo of a Pacific sheath-tailed bat is the last good photo of this bat from Aguiguan in existence.
This photo of a Pacific sheath-tailed bat is the last good photo of this bat from Aguiguan in existence.
Mobile Tracking in The Dalles on the Columbia River
Tracking/monitoring movement of juvenile salmonids implanted with radio transmitters as they migrate down the Columbia River to the ocean.
Tracking/monitoring movement of juvenile salmonids implanted with radio transmitters as they migrate down the Columbia River to the ocean.
Columbia River Contaminants and Habitat Study
USGS scientists strategize near the Rooster Rock boat launch en route to Skamania Landing to collect fish for the Columbia River Contaminants and Habitat Study.
People pictured from the left: Glen Holmberg, Leticia Torres, Conrad Frost, Elena Nilsen.
USGS scientists strategize near the Rooster Rock boat launch en route to Skamania Landing to collect fish for the Columbia River Contaminants and Habitat Study.
People pictured from the left: Glen Holmberg, Leticia Torres, Conrad Frost, Elena Nilsen.
Late Fall on the Little Missouri River
Late fall in the North Dakota Badlands on the Little Missouri River near Medora.
Late fall in the North Dakota Badlands on the Little Missouri River near Medora.
Using Airboats For Marsh Studies
National Wetlands Research Center scientists use air boats for the marsh studies along the Gulf of Mexico.
National Wetlands Research Center scientists use air boats for the marsh studies along the Gulf of Mexico.
Beach on the Colorado River in Grand Canyon
Beaches in the rough terrain of Grand Canyon are a valued resource by hikers and river runners because they are fairly flat and vegetation free.
Beaches in the rough terrain of Grand Canyon are a valued resource by hikers and river runners because they are fairly flat and vegetation free.
Queen angelfish - Hurricane Hole, Virgin Islands
A queen angelfish peers through the safety of the mangrove roots across the rich colors and textures of corals, sponges, urchins, and algae. Queen angelfish feed almost exclusively on sponges, which are abundant in these mangroves.
A queen angelfish peers through the safety of the mangrove roots across the rich colors and textures of corals, sponges, urchins, and algae. Queen angelfish feed almost exclusively on sponges, which are abundant in these mangroves.
Invasive Lionfish Removal
In September 2009, divers carefully capture an invasive red lionfish (Pterois volitans) found near the coast of North Carolina. Invasive lionfish are now established in the hard bottom habitats of North Carolina's coast, where they are abundant.
In September 2009, divers carefully capture an invasive red lionfish (Pterois volitans) found near the coast of North Carolina. Invasive lionfish are now established in the hard bottom habitats of North Carolina's coast, where they are abundant.
Invasive Lionfish Removal
Research divers rest at 20 feet as they ascend with a dive bag containing invasive red lionfish (Pterois volitans). The bag is clipped to a line to prevent them being stung by the lionfish as its bladder fills with air during the ascent. These lionfish were removed from hard bottom habitat, about 100 foot deep, near the coast of North Carolina.
Research divers rest at 20 feet as they ascend with a dive bag containing invasive red lionfish (Pterois volitans). The bag is clipped to a line to prevent them being stung by the lionfish as its bladder fills with air during the ascent. These lionfish were removed from hard bottom habitat, about 100 foot deep, near the coast of North Carolina.
Coniferous Forest in Fog
A forest consisting of mostly coniferous trees covered in fog.
A forest consisting of mostly coniferous trees covered in fog.
Coniferous Forest in Fog
A forest consisting of mostly coniferous trees covered in fog.
A forest consisting of mostly coniferous trees covered in fog.
Unidentified Spruce (Picea Sp.)
A coniferous forest in a mountainous environment.
A coniferous forest in a mountainous environment.
Unidentified Spruce (Picea Sp.)
A coniferous forest in a mountainous environment.
A coniferous forest in a mountainous environment.
Coniferous Forest and River
A river runs by a coniferous forest with mountain view in distance.
A river runs by a coniferous forest with mountain view in distance.
Coniferous Forest and River
A river runs through a coniferous forest.
A river runs through a coniferous forest.
Mountain Rainbow
Rainbow near a mountain and forest.
Rainbow near a mountain and forest.
Mountain Rainbow
Rainbow near a mountain and forest.
Rainbow near a mountain and forest.